Iowa DNR
BioNet
River & Stream Biological Monitoring
Fish and Benthic Macroinvertebrate Surveys
Physical Habitat Assessments

North Walnut Creek Pleasant Plain (new downstream site)

Invert Sampling Session #10895

Session Data

Sample Date
8/13/2024
Sampling Gear
Surber
Lab ID Number
2478990
Sample Quality
Good
Created Date
12/12/2024 2:01:01 PM
Last Update
12/27/2024 7:30:20 AM

Semi-Quantitative Sampling

Replicate Number
1
Dominant Form Periphyton
Filamentous Algae
(LT- Light, MD- Moderate, MH- Moderate/Heavy, HV- Heavy)
Periphyton Growth
HV
Sedimentation/Embededness
MD
Colonization
LT
Comments

No comments recorded.

Collected Benthic Macroinvertebrates

  • Total taxa collected 9
  • Total individuals collected 103
Scientific Name Order Family Common Name # Collected
Acerpenna pygmaea Ephemeroptera Baetidae Small Minnow Mayflies 6
Baetis intercalaris Ephemeroptera Baetidae Small Minnow Mayflies 30
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 9
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 28
Girardia Tricladida Dugesiidae Flatworms 14
Hydropsyche betteni Trichoptera Hydropsychidae Common Netspinner Caddisflies 1
Hydropsychidae Trichoptera Hydropsychidae Common Netspinner Caddisflies 10
Nematoda Nematodes 1
Simulium Diptera Simuliidae Black Flies 4

= Excluded from taxa count metrics

Notes: